Year	Number
2004	1650000
2005	1938000
2006	2227000
2007	2451000
2008	2581000
2009	2681000
2010	2948000
2011	3299000
2012	3642000
2013	4010000
2014	4062000
2015	4381000
2016	4718000
2017	4992000
2018	5384000
2019	5275000
2020	1119000